WO2009036994A2 - Spritze mit wechselbarer nadel - Google Patents
Spritze mit wechselbarer nadel Download PDFInfo
- Publication number
- WO2009036994A2 WO2009036994A2 PCT/EP2008/007911 EP2008007911W WO2009036994A2 WO 2009036994 A2 WO2009036994 A2 WO 2009036994A2 EP 2008007911 W EP2008007911 W EP 2008007911W WO 2009036994 A2 WO2009036994 A2 WO 2009036994A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- syringe
- geometry
- coupling
- needle
- recess
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
- B01L3/022—Capillary pipettes, i.e. having very small bore
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/02—Adapting objects or devices to another
- B01L2200/026—Fluid interfacing between devices or objects, e.g. connectors, inlet details
Definitions
- the present invention relates to a syringe such as used for sample treatment in chromatography and the like.
- a syringe has a syringe body which has an axial inner recess extending in the direction of a syringe body longitudinal axis in which a piston is guided in an axially movable manner.
- This piston contributes together with a portion of a wall bounding the inner recess in the radial direction for limiting a fluid receiving volume.
- the syringe body longitudinal axis basically defines the axial direction.
- a direction orthogonal thereto is a radial direction in the sense of the present invention.
- such a syringe has a needle which is connectable or connected to a longitudinal end of the syringe body with this.
- syringes are known from medicine, in which a needle has a coupling geometry at its longitudinal end closer to the syringe body through which the needle can be connected to a counter-coupling geometry of the syringe body.
- the negative feedback geometry has an insertion section which, in the assembled state of the syringe, is accommodated in a coupling recess of the coupling geometry.
- this object is achieved by a syringe of the type mentioned, in which securing means are provided which prevent in the assembled state of the syringe a pull-out movement of the insertion of the coupling recess.
- the provided securing means the needle can not be removed from the syringe body, so that the needle is securely coupled to the syringe body.
- Securing the needle at and releasing it from the syringe body and a particularly preferred sealing of the syringe body coupling can be achieved by the securing means having an axial displacement component which is displaceable axially by actuation, such that the axial displacement component exerts axial pressure can exert the inserted into the coupling recess insertion section.
- Clamping geometry include, which is in the mounted state of the syringe in engagement with a needle associated Spannadelgeometrie.
- the clamping geometry and the Spannumblegeometrie can then be particularly easily and safely brought into sealing engagement with each other when a geometry of clamping geometry and clamping counter-geometry has a first taper section, which tapers towards the free longitudinal end of the geometry carrying it and which is at least partially inserted into a receiving recess of the other geometry in the mounted state of the syringe, and that the receiving recess has a first expansion portion which widens to the free longitudinal end of the geometry carrying it, preferably the tapering of the first tapering portion in the axial direction and the widening profile of the first widening section in the axial direction essentially correspond to such that, in the installed state of the syringe, the tapering section lies flat against the widening section at least along a circumferential line around the longitudinal axis of the syringe body.
- the first taper section has a cone section and preferably the receiving recess has a conical recess.
- the cone section and the conical recess have a same cone opening angle.
- the clamping geometry is formed integrally on the axial displacement component.
- assembly of the syringe components with one another can take place particularly gently for the latter when the clamping geometry is formed on a clamping component provided separately from the axial displacement component and axially displaceable by the axial displacement component.
- the relative movement can be specifically brought about at uncritical locations and reduced between syringe components at critical points, which reduces the risk of component damage.
- the needle relative to the syringe body can be ensured according to a first embodiment of the present invention, characterized in that a component having the clamping geometry is designed for common movement with the needle.
- at least the correct positioning of the needle relative to the syringe body can also be ensured by the fact that the Axialver einsbauteil is designed for common movement with the needle.
- a component "for joint movement" with the needle can be achieved either by integrally forming the component with the needle or by a rigid connection of the component with the needle.
- Axialver einsbauteils can be provided that this is guided on a guide member for axial movement.
- the guide component may comprise a sleeve, which is provided on the syringe body, in particular at its needle nearer longitudinal end.
- the guide member in particular the sleeve is connected by pressing and / or gluing body with the syringes.
- a particularly simple, secure and at the same time accurate positioning of the Axialverstellbauteils relative to the guide member can be achieved in that the guide member, in particular the sleeve, a thread, preferably internally threaded, and that the Axialverstellbauteil comprises a screw which is a threaded engaging or removable counter thread, preferably has external thread.
- the positioning accuracy depends on the selected pitch of the thread and counter thread.
- the thread of the guide member is an internal thread, so that the Axialver einsbauteil can be screwed into this. This prevents excessive radial dimension of the syringe.
- Coupling geometry is provided on a separate coupling component.
- the coupling member has a projection, preferably radial projection for abutment with a counter-contact surface of the syringe body.
- the sealing effect that can be achieved with the coupling member can be further increased by being made of an elastic material.
- the insertion if it is provided on the coupling member having a cylindrical portion to facilitate insertion into the coupling recess, possibly with an insertion bevel, wherein the cylindrical portion of the
- Insertion section is then introduced into the coupling recess and applies by clamping through the above-mentioned clamping geometry sealingly against an associated wall of the coupling recess.
- the insertion section may be thought to form the insertion section with a bulbous outer shape, so that even a radial bias due to elastic material deformation during insertion of the insertion can be achieved in the coupling recess.
- Columns should be avoided at the coupling point of the coupling member with the syringe body, since materials can accumulate here, which can contaminate the fluid received in the local fluid receiving volume at several successive fillings of the syringe.
- the insertion section and the coupling recess are made of rigid materials as well as in the case where at least one of the formations is made of an elastically yielding material such as polytetrafluoroethylene, a good sealing effect of the coupling site between coupling geometry and counter-coupling geometry can be achieved in that the insertion section has a second tapered portion, which tapers towards the free longitudinal end of the geometry carrying it and which is at least partially inserted in the coupling recess of the other geometry in the mounted state of the syringe, and in that the coupling recess has a second Expander portion which widens toward the free longitudinal end of the geometry carrying it out, wherein preferably the tapering of the second tapering section in the axial direction and the widening course of the second n expansion portion in the axial direction substantially correspond to such that in the assembled state of the syringe, the second tapered portion at least along a circumferential line around the syringe body longitudinal axis linear, more preferably along a
- the insertion section has a cone portion and preferably has the coupling recess on a conical recess.
- the sealing effect of the coupling point can be further increased by the fact that the insertion has an end surface with a radial extension component, which sealingly bears in the mounted state of the syringe against a counter surface of the syringe body. However, this is recommended to avoid unwanted
- the avoidance of contamination of the drawn-up in the syringe fluid is of great importance.
- a coating may be a quartz or glass coating which provides a particularly smooth, yet inert, and transparent surface to many fluids.
- the coating can be applied by the so-called nano-technology on the inside and / or outside of the needle.
- the coating can be applied in a conventional manner by a sol-gel process to the candidate walls or wall sections of the syringe.
- FIG. 1 is a partial sectional view of a first embodiment of a syringe according to the invention
- FIG. 2 is a detail longitudinal sectional view of the needle and syringe body coupling of the first embodiment of FIG. 1;
- Fig. 3 shows a second embodiment of a needle-syringe body coupling
- Fig. 4 shows a third embodiment of a needle-syringe body coupling.
- a first embodiment of a syringe according to the invention is generally designated 10.
- the syringe 10 has a syringe body 12 with an extending in the direction of a syringe body longitudinal axis L inner recess 14 in which a piston 16 is received in the direction of the syringe body longitudinal axis L, ie in the axial direction, movable.
- the piston 16 is movable by a piston rod 18 rigidly connected to the piston 16, which can be kar- and pressure-actuated via an actuator end member 20.
- the syringe 10 shown in FIG. 1 further comprises a needle 24 with a needle cannula 26.
- the needle 24 has a coupling geometry 28 at its longitudinal end 24a, which is closer to the injector in the installed state, which has a counter-coupling geometry 30 at the needle-like end
- FIG. 2 shows the detail circled in FIG. 1 and designated "II".
- the coupling geometry 28 comprises a substantially cylindrical insertion section 32, which is inserted into a coupling recess 34 of the counter-coupling geometry 30.
- the insertion section 32 is provided at its inserted into the coupling recess 34 longitudinal end with an insertion bevel or a circumferential Ein Industriesfase.
- the insertion section 32 is an integral part of a coupling element 36 made of an elastic plastic, in the present example polytetrafluoroethylene.
- This component 36 has, at its longitudinal end opposite the insertion section 32, a clamping counter-geometry 38 in the form of a clamping cone.
- a circumferential circumferential radial projection 40 is formed on the coupling member 36, which rests in the mounted state of the syringe 10 on a counter-bearing surface 42 of the syringe body 12.
- the radial projection 40 comes to bear against the counter-bearing surface 42, a correct fit of the coupling member 36 is ensured.
- the needle cannula 26 is inserted in a central through recess 44 of the coupling member 36.
- the needle cannula 26 may be connected to the coupling member 36 by gluing or the like. Preference is given to avoid unwanted contamination of a fluid received in the fluid receiving space 22 by adhesive components, the needle cannula 26 only held frictionally engaged in the coupling member 36.
- a sleeve-shaped guide member 46 is connected by pressing and gluing with the syringe body 12.
- the guide member 46 has an internal thread 48, in which a Axialver einsbauteil in the form of a clamping screw 50 with a
- External thread 52 along the syringe body longitudinal axis L is axially movable screwed.
- the needle cannula 26 is passed, wherein the diameter of the central recess 54 is greater than the outer diameter of the needle cannula 26.
- a clamping member 58 is received, which is glued to the needle cannula 26 for joint movement, welded or otherwise connected.
- the clamping component 58 has a clamping geometry in the form of a conical receiving recess 60 into which the conical clamping counter-geometry 38 of the coupling component 36 protrudes in the axial direction.
- Coupling member 36 are selectively deformed elastically, so that it rests sealingly without a gap on the coupling member 12.
- the coupling recess 34 passes continuously into the inner recess 14.
- FIG. 3 an alternative second embodiment is shown. Same components as in Fig. 2 are provided with the same reference numerals, but increased by the number 100th
- FIG. 3 will be described below only to the extent that it differs from the embodiment of FIGS. 1 and 2, to the description of which reference is expressly made.
- the second embodiment shown in Figure 3, is suitable for syringes with extremely low syringe volumes, i. with an inner recess 114 of very small diameter.
- the coupling recess 134 has a larger diameter than the inner recess 114 of the syringe body 112.
- the coupling recess 134 merges with the inner recess 114 to form a radial step.
- an end face 164 of the insertion portion 132 can sealingly abut on a mating surface 166 of the syringe body 112 when sufficient deformation pressure is applied to the coupling member 136 by means of the tightening screw 150 and the tightening member 158.
- FIG. 4 shows a third embodiment of a syringe according to the invention with a needle-syringe body coupling.
- the insertion portion 232 is provided on the negative feedback geometry 230 of the syringe body 212, while the coupling recess 234 is formed on the coupling geometry 228 of the needle 224.
- the radial projection 240 of the coupling member 236 extends, in contrast to the previous embodiments, radially inward at the longitudinal end of the coupling member 236, which is closer to the injector body.
- clamping member 258 is axially supported on the sleeve-shaped guide member 264.
- the tensioning screw 250 is connected to the needle cannula 226 for common rotation.
- the clamping counter-geometry 238 of the coupling member 236 surrounds the insertion portion 234 of the syringe body 212 radially outward in the circumferential direction and abuts against the tapered receiving recess 260 of the clamping member 258.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008801156560A CN101854970B (zh) | 2007-09-19 | 2008-09-19 | 具有可更换的注射针的注射器 |
US12/679,056 US8623298B2 (en) | 2007-09-19 | 2008-09-19 | Syringe with exchangeable needle |
JP2010525262A JP5059195B2 (ja) | 2007-09-19 | 2008-09-19 | 交換可能な針を有する注射器 |
AT08832176T ATE531412T1 (de) | 2007-09-19 | 2008-09-19 | Spritze mit wechselbarer nadel |
EP08832176A EP2205299B1 (de) | 2007-09-19 | 2008-09-19 | Spritze mit wechselbarer nadel |
AU2008300820A AU2008300820B2 (en) | 2007-09-19 | 2008-09-19 | Syringe with exchangeable needle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007013096.1 | 2007-09-19 | ||
DE202007013096U DE202007013096U1 (de) | 2007-09-19 | 2007-09-19 | Spritze mit wechselbarer Nadel |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2009036994A2 true WO2009036994A2 (de) | 2009-03-26 |
WO2009036994A3 WO2009036994A3 (de) | 2009-07-16 |
WO2009036994A8 WO2009036994A8 (de) | 2010-05-06 |
Family
ID=40328340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/007911 WO2009036994A2 (de) | 2007-09-19 | 2008-09-19 | Spritze mit wechselbarer nadel |
Country Status (7)
Country | Link |
---|---|
US (1) | US8623298B2 (de) |
EP (1) | EP2205299B1 (de) |
JP (1) | JP5059195B2 (de) |
CN (1) | CN101854970B (de) |
AT (1) | ATE531412T1 (de) |
DE (1) | DE202007013096U1 (de) |
WO (1) | WO2009036994A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013210998A1 (de) | 2013-06-13 | 2014-12-18 | Hamilton Bonaduz Ag | Spritze mit mechanischem Kopplungsstück |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2524200B1 (de) * | 2010-01-11 | 2019-09-11 | Waters Technologies Corporation | Verbundprobennadel für einen flüssigchromatographen |
WO2011110141A1 (de) * | 2010-03-11 | 2011-09-15 | Cybio Ag | Pipettiereinheit und pipettor, umfassend eine solche pipettiereinheit, sowie pipettenspitze zur verwendung mit einem solchen pipettor |
JP7019160B2 (ja) * | 2016-12-08 | 2022-02-15 | 株式会社ユニシス | 薬液注入装置およびその装置に使用される注射針 |
KR102043828B1 (ko) * | 2017-04-21 | 2019-11-12 | 사회복지법인 삼성생명공익재단 | 의료용 정밀 주사기 |
CN107727873A (zh) * | 2017-10-12 | 2018-02-23 | 山东艾科达生物科技有限公司 | 自动化棉签抓手、妇科联检仪及其工作方法 |
CN107632165A (zh) * | 2017-10-12 | 2018-01-26 | 山东艾科达生物科技有限公司 | 棉签的自动化挤压装置、妇科联检仪及其工作方法 |
CN108837237B (zh) * | 2018-07-10 | 2020-09-18 | 温州市人民医院 | 一种可伸缩注射器 |
DE102018131603A1 (de) * | 2018-12-10 | 2020-06-10 | Hitec Zang Gmbh | Vorrichtung zum Dosieren von Chemikalien |
US11446672B2 (en) * | 2019-10-25 | 2022-09-20 | Mettler-Toledo Rainin, LLC | Powered positive displacement pipette syringe piston grasping mechanism |
CN112517325A (zh) * | 2020-11-17 | 2021-03-19 | 合肥艾迪康医学检验实验室有限公司 | 滴胶盒和滴胶装置及滴胶方法 |
KR102390990B1 (ko) * | 2021-03-02 | 2022-04-26 | 강주석 | 주사기용 젠더 및 이를 포함하는 주사기 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004047895A1 (de) * | 2002-11-25 | 2004-06-10 | Tecpharma Licensing Ag | Vorrichtung zur sicherung von injektionsnadeln |
WO2006096901A1 (en) * | 2005-03-14 | 2006-09-21 | Global Medisafe Holdings Limited | Exchange needle auto retractable syringe |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4490142A (en) * | 1983-08-22 | 1984-12-25 | Silvern Rubin D | Carpule syringe with rapidly acting mechanism for controllably _positively retaining the hub of a hypodermic needle |
US4740205A (en) * | 1987-07-23 | 1988-04-26 | Leilani Seltzer | Disposable needle system |
US5195985A (en) * | 1990-05-25 | 1993-03-23 | Hall John E | Syringe having a retractable needle |
US6149630A (en) * | 1999-06-21 | 2000-11-21 | Owens-Illinois Closure Inc. | Syringe with squeeze release needle guard |
GB0227582D0 (en) * | 2002-11-27 | 2002-12-31 | Johnson Matthey Plc | Reforming catalyst |
JP2005066357A (ja) * | 2004-10-25 | 2005-03-17 | Takuya Asano | 糸通しが容易に行える機能と構造を加えた裁縫道具と医療用針 |
US20090240210A1 (en) * | 2005-03-14 | 2009-09-24 | Global Medisafe Holdings Limited | Auto retractable syringe |
US20070027232A1 (en) * | 2005-07-27 | 2007-02-01 | Chemcoat, Inc. | Coating compositions incorporating nanotechnology and methods for making same |
JP2007209675A (ja) * | 2006-02-13 | 2007-08-23 | Chemo Sero Therapeut Res Inst | プレフィルドシリンジの製造方法 |
-
2007
- 2007-09-19 DE DE202007013096U patent/DE202007013096U1/de not_active Expired - Lifetime
-
2008
- 2008-09-19 EP EP08832176A patent/EP2205299B1/de active Active
- 2008-09-19 WO PCT/EP2008/007911 patent/WO2009036994A2/de active Application Filing
- 2008-09-19 US US12/679,056 patent/US8623298B2/en active Active
- 2008-09-19 CN CN2008801156560A patent/CN101854970B/zh active Active
- 2008-09-19 JP JP2010525262A patent/JP5059195B2/ja active Active
- 2008-09-19 AT AT08832176T patent/ATE531412T1/de active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004047895A1 (de) * | 2002-11-25 | 2004-06-10 | Tecpharma Licensing Ag | Vorrichtung zur sicherung von injektionsnadeln |
WO2006096901A1 (en) * | 2005-03-14 | 2006-09-21 | Global Medisafe Holdings Limited | Exchange needle auto retractable syringe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013210998A1 (de) | 2013-06-13 | 2014-12-18 | Hamilton Bonaduz Ag | Spritze mit mechanischem Kopplungsstück |
Also Published As
Publication number | Publication date |
---|---|
US20100312194A1 (en) | 2010-12-09 |
EP2205299B1 (de) | 2011-11-02 |
EP2205299A2 (de) | 2010-07-14 |
JP2010539499A (ja) | 2010-12-16 |
DE202007013096U1 (de) | 2009-03-05 |
ATE531412T1 (de) | 2011-11-15 |
US8623298B2 (en) | 2014-01-07 |
WO2009036994A8 (de) | 2010-05-06 |
CN101854970B (zh) | 2013-06-12 |
CN101854970A (zh) | 2010-10-06 |
AU2008300820A1 (en) | 2009-03-26 |
WO2009036994A3 (de) | 2009-07-16 |
JP5059195B2 (ja) | 2012-10-24 |
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